Kimi Sae mo Ai no Kusari

Shouta Koishikawa and Miono Hasuoka childhood friends and neighbors are always together. At some point Shouta's heart starts to recognize Miona and around that time Miona was charmed by her science teacher, Professor Kaorumaru. Not entirely what he seems to be he predicts the future in which Miono's fated love will "awaken another Miono". Later that day Shouta was going to confess with Miono but then a demon Ginyasha appears and took over his body awakening something inside Miono. So begins Shouta's struggle to control both the demon and future. Everything now spins on the Wheels of Fate that was set in motion hundreds of years ago and is about to come in full circle.